<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset='utf-8'>
  <meta name='viewport' content='width=device-width,initial-scale=1'>
  <meta name='apple-mobile-web-app-capable' content='yes'>

  <title>OBS-web</title>

 
</head>
	
<body>
<div >
	<button id="sdfsdf">sdfsdf</button>
</div>
	
</body>
</html>